A very good mystery by a Canadian author (chosen from the CBC List of 100 Authors who make us proud to be a Canadian). This is a plot-driven mystery, so not much description of place. An intrepid private eye solves several murders, with the usual corrupt police force. There is a good surprise at the ending!
https://www.goodreads.com/book/show/16072980-a-tap-on-the-window


One of the best features of this book is the setting: New York and more specifically Coney Island in Brooklyn in 1911. The “museum” is really an exhibit of freaks of nature, both living and dead, most faked/manipulated. The Professor character is wonderfully wicked, but love wins out. Part of the story is a mystery, to add to the flavour.
A 3-way story: a man who dies accidentally, his wife, and the woman he was having an affair with. It is not so much a story of infidelity but what secrets need to be hidden.
This is a horrible story about abusive life within a Jehovah’s Witness family, told from the viewpoint of the 11 year old daughter. Combination of desperate guilt and cruelty.